Apulsar is a rapidly rotating neutron star. the crab nebula pulsar in the constellation taurus has a period of 33.5\times 10^{-3}~\text{s}33.5×10 −3 s, radius 10.0 km, and mass 2.8\times 10^{30}~\text{kg}2.8×10 30 kg. the pulsar’s rotational period will increase over time due to the release of electromagnetic radiation, which doesn’t change its radius but reduces its rotational energy. what is the angular momentum of the pulsar?

Is a  vector quantity  that refers to "the rate at which an object changes its position." imagine a person moving rapidly - one step forward and one step back - always returning to the original starting position. while this might result in a frenzy of activity, it would result in a zero velocity. because the person always returns to the original position, the motion would never result in a change in position. since velocity is defined as the rate at which the position changes, this motion results in zero velocity. if a person in motion wishes to maximize their velocity, then that person must make every effort to maximize the amount that they are displaced from their original position. every step must go into moving that person further from where he or she started. for certain, the person should never change directions and begin to return to the starting position.

No because a circle or pie graph usually shows percentages you'd need a line graph